The stock dipped 3.36 per cent to Rs 1,081.10 on the BSE.
At the NSE, it declined 3.52 per cent to Rs 1,081.
The share sale, which was executed between July 21 and 23, brought down Puri''s holding in the most valued Indian lender to just 0.01 per cent from the earlier 0.14 per cent, according to regulatory filings.
The sale comes months ahead of Puri''s retirement from the bank, which he led to become the largest by assets among private lenders and the second-largest overall over 25 years.
He sold 74.20 lakh of the 77.96 lakh shares in the bank and Puri''s remaining holding of the bank shares is now 3.76 lakh shares valued at over Rs 42 crore as of the last close.
A bank spokesperson explained that the shares were allotted to Puri over a period of time at different price points and stressed that they were not given at par with the face value of the share.